Ultimate Limit State Design Of Sheet Pile Walls By Finite Elements And Nonlinear Programming

Kristian Krabbenhøft, Lars Damkilde, Sven Krabbenhøft

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    Abstrakt

    The design of sheet pile walls by lower bound limit analysis is considered. The design problem involves the determination of the necessary yield moment of the wall, the wall depth and the anchor force such that the structure is able to sustain the given loads. This problem is formulated as a nonlinear programming problem where the yield moment of the wall is minimized subject to equilibrium and yield conditions. The finite element discretization used enables exact fulfillment of these conditions and thus, according to the lower bound theorem, the solutions are safe
    OriginalsprogEngelsk
    TidsskriftComputers & Structures
    Vol/bind83
    Udgave nummer4-5
    Sider (fra-til)383-393
    ISSN0045-7949
    StatusUdgivet - 2005

    Emneord

    • Sheet Pile Walls
    • Plasticity
    • Limit Analysis
    • Material Optimization
    • Finite Elements
    • Nonlinear Programming

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